The driver of a van sustained a serious injury after his vehicle collided with a lorry.
He was trapped inside the vehicle and had to be freed by firefighters.
His ankle was seriously injured, although he is not thought to have sustained life-changing or life-threatening injuries.
Police were called at 2pm this afternoon to the collision at United Downs Industrial Estate near Carharrack.
United Road is partially blocked both ways and traffic is slow.
The incident is ongoing as of 3.37pm.
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